Work-holder for machine-tools.



T. BRIOK. WORK HOLDER FOR MACHINE TOOLS. APPLICATION FILED DEC, 23,1907.

989 693. Patented Apr. 18, 911.

llii 9Q ,LL A ,LL

E- ii I: r I Q 7 SS I lnvenior' THOMAS BRICK, onnnw' i onic, n; Y.

.WORKHOLDEB FOR MACHINE-TOOLS.

' 989,893? jfir' fi w lefiarsilatwt Ia-tented Ap1a18. 1911..

Application filed December as, 19,07. Serial no. 40 ,213. I To all whomit may/concern porting bracket 1 is susceptible of a limited "Be itknownthat l', Trroams Baron, a angular adjustment in a vertical plane,and citizen of the United States, residing in the such adjustment may beeffected by screws 4 borough of Queens, city ofNew York, in. which arethreaded. through the foot of the theicpun ty of Queens "and State ofNew bracket 1 and are adapted to engage with the ork, have inventedacertain new and usetop of the bed-plate 2.- To adjust .the

" ful Improvement in llork-Holders for Ma bracket 1 the retaining bolts3 are loosened;

thereof.

chine-Tools, of which the following is a then to tip the bracket forwardthe two rear specification, reference being had therein to screws 4 areturned down the desired or rethe accompanying drawings, forming partquired amount, after which the bolts 3 are again tightened. To tip thebracket 1 back- My invention relates to chucks or workward the forwardscrews 4 are turned down holders for machine tools, as for example,while the bolts 3 are loose. The tipping of for drill" presses,.planers, shapers, milling the supporting bracket ljtips the work andmachines, and lathes. enables it tobe adjusted to proper position. Theprincipal objects of my invention are Means are provided for firmlyholding the cihciency and'convenience of operation and work orarticle tobe, operated onxand for economy of time. shifting or adjusting sucharticleto any Other objects and advantageswill appear angle, or forcompletely reversing itvfrom top fromthe following description. tobottom; or in other words, the work may The practice heretofore in drillpresses has be adjusted in a vertical plane, or on a subbeen to employ awork holder consisting 0f stantiallyhorizontal axis, to any portion of asimple clamp formed by a single lever of a complete circle or throughoutthree hunthe third kind or third class which was see dred andixtydegrees This adjustment encnr dby a bolt directly to the. bed plateOf" ables holes to be drilled or other operation to the machine. Thisform of" clamp or work be performed in any direction or at any holder,besides being defective in other I'eangle upon the piece of work whilethe work spects, required that the work h uld e is still. securelyclamped in the work holder. leased so that itcould be shifted oradjusted s h means o ri a, u -sha ed face for each di'ii'erent operationupon it. l t 5, Th work 6.(Fig, 1) is held bethe work or articleoperated upon to difierti ht d or d d g in t. th work by ent positionswithout "removing itfrom the lamp-bolts .8 provided with wing-nuts 9.work-holder. j The clamp-bolts 8 also serve to attach the 0 My-inventionalso includes means for se Chmps 7 t th fa l t 5 d pass th h curelyholding work or articles ofvarious'or th 1 5 l t d are ur d by nuts 10.di fer n sizes. H a The front face of the uprightportion of Mv inventional o incl ar s f theLbracket 1- is provided as shown with an tures of'construction and combination of annular groove f i i g Rd fri Myinvention includes means for shifting chunpbars or .V b1 k 7 hi h are Pas hereinafter described tionally engagingthe edge or rim of the cup- .Iwill now describe the means embodying shaped faceplate The face "plateis my invention which are illustrated in the acheld in position by acountersunk retaining companying drawings and will thereafter bolt 11which passes'throughthe center of. I point out myinvention in the claim.the face plate and through the bracket 1 and Figure 1 is a medianlongitudinal vertical t d rearwardly f th i ht section. Fig. 52 is afront elevation. F gtion of the bracket, where it is provided with isaplan Vie\ Fig. 4: i l W slmllal a wing-nut or thumb-nut 12, and toprevent Fig. lof a slightly modified construc i the bolt 11 fromrotating withthe nut 12 In the embodiment of my invention illusthe boltis shown as provided with a squared trated in Figs. 1, 2 and 3 anL-shaped frame, portion where it passes through the bracket. or bracket1 is secured to the bed-plate 2 of A coiledstiif thrust-spring 13surrounds the the machine tool by bolts 3. In usual prac-- bolt 11within the cup formed by the face ticethe bracket 1 is located as shownadja-f plate 5 and acts between the face plate and cent to and with itsforward edge fins with the bracket, and this thrust-spring "serves 116the edge of the bed-plate are provide a s'ufliseveral purposes oraccomplishes a plurality cient clearance space forthe work. The supoffunctions. The mm of the face plate 5 Q ad et fits' closelyt in the groove in the; bracket drilled arejdetermined in the usualnmiii and whenthe Ill tl-l2g is tightened up'the her-shy horizontally shifting thedrill.

ifrictionof the rimtredge of the face plate ".hea dbut the angle of thedrilled :holes is,

. v in the grooye preyents'anyslipping] froni p detern'iined and'alsofdiiierent sides of. the 5.*sitlon'or'shifting out'oiplaceofthewo-rkl' piece-of'work iare brought, into operative desired toshiftiorchange the. .position, Ofgll'l 'position:t o'-be acted onby postionofthe'workjtlm nut'12 is-nnscrewed the IdIlllS,, byrot'artivelyadjustin the ace." or loo'sened;' LWhenfithe nut 12' issufliciently plate as above'descr'ibed and there yadjustunscrewedtheisprin'g-lii willdislodge'ordis. .ingthe work. For.planers,'- shapersand v ;l;o 'eng"ageithe r1m-;ofthe'faceplate-;from'the. jmilling machine's diflerent portions or-sides groove,permitting easy movement orad-- of article maybebrought into positionto. fjlus'tment ofl th face plate 5,- a nd-consebeaeted on.withoutremoving or unc1amp-. 'quiently off the work .'.carri'ed-thereupon; to ing-;the;"work; jMylIWehtiml is used on athe'desired-angulfar position. .Thesp'ring'ld -lathe'inlsubstantiallythe'sa'me manner ason al 'sofproy-ides,sufficient friction. toretain theaudrill'pres's and :holds *the work in station izoi'kin'the"adjustedpostion until. the nut. farypositi-onto-beoperated on; j

12fca'n? tie-tightened to firmlysecure it thus. Ainoiigjthe kinds orclasses'of work which 'Owing'to theffact 'th'at the '-face plate '5'.and gmayl be advantageously operated on by the' clamps}? overhang orextend-beyond the use'of my; invention are T and X ipe-con- 2'o-ledge ofthe bed-plate '2 plenty of clearance nectors-or pipeconneotions, ofwhichallofv sp'aceis proyidedtoturn-oriangularly shift' the flangesmay-jbedrilledina 'drill-press. arge piecesofwork'while theworkishel'dwith-one settingofithpiece ofjwork in the .b'y'the'clamps-L workholder.-".,

Forwconvenienceginadjustingand read-' It is obv1ous ,that'yariousrnodiiications "701 25 justing the Work thejfaceplate 5 isprovided. may be made inthe constructionsshown and 'eircumferentially.asshownl (Fig. .3)" with a above art-icula ,ly described within the l scale wliich isfadapted to coactwith an in princip 'e andfscope ofmyfinvention, as dejdeii jonthe upper part of the front face of finedinthe tollowing claim. 1 i e-bracket(Fig, 2), For convenientlyI."c1ai1n.:'

rotatin {Wei-Plate f r nt. posi-l a. A'work-liolder forimachinetools'con'iprlstions -0 angular" adjustment it is shown as--'in'gan'an'gl'e plate-1 provided with work provid'ed circumferentiallywith a-nu n'ber' holding*rneans-pivotally mounted at one of got holesintowhich a'tool maybe inserted. j ,.the sides of theangle-plate 'theangle plate Instead. of the bolt 11 and thetnut 12. "for beingadaptedtoibe secured atits other side 80 drawing the face plate and the,bracketto to a work' tabl 'eyand'al lurality ofadjustin'g- =1 jgether,other means-may be provided. For; screws threaded into his other side ofthe example, 3-b01t'14: provided With a slot in angle jp lateinpositionto engage the work.

'whichengag'es'a drawing-key'15, as.illustable up on'which; heangleplate ls secured trated in Fig. 4, may 'be employed. In and to space-theangle plat 40; other respects the construction shown in inangularpositio'rn Fig..' 4 is substantially the same as that Intestimonywhereofl aflix my signature shown in the preceding figures anddescribed in presence of two W tnesses. above. THOMAS BRICK. When niyinvention is'ernployed on \Vitnesses': s 45 press the horizontal (orlateral, and forward WM. ASHLEY KELLY,

and back) positions or locationsof the holes WM. S. PBITCHARD.

e away therefrom 8'5

